why do aeroplane fly in the sky
Dear Student
Lift, weight, thrust and drag are four forces that help a plane fly in the sky. When engines push plane forward it rapidly pushes air backwards which goes over wings which shifts the air towards the ground that creates a lift force that overcomes the weight of the plane and holds it on sky thus engines help in forward movement and wings help in upward movement.

Hope this information will clear your doubts about the topic.
Regards
Lift, weight, thrust and drag are four forces that help a plane fly in the sky. When engines push plane forward it rapidly pushes air backwards which goes over wings which shifts the air towards the ground that creates a lift force that overcomes the weight of the plane and holds it on sky thus engines help in forward movement and wings help in upward movement.

Hope this information will clear your doubts about the topic.
Regards